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User equipment

a technology for user equipment and radio access networks, applied in the direction of electrical equipment, connection management, wireless communication, etc., can solve the problems of mcg performance degradation, adverse effects on mr-dc, etc., and achieve the effect of suppressing the degradation of the performance of a specific radio access network

Pending Publication Date: 2022-06-09
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention aims to provide a user equipment that can prevent the performance of a specific radio access network from being affected by the configuration and release of connections to nodes. This helps to maintain the network's stability and reliability.

Problems solved by technology

However, the above-described procedure for adding and releasing the SCG (SN) in the MR-DC has the following problems.
When the amount of signaling in the RRC layer for the MCG is increased, transmission and reception of other user plane signals that are not related to the MR-DC are adversely affected, and as a result, performance of a radio access network (RAN) for the MCG deteriorates.

Method used

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Embodiment Construction

[0025]Hereinafter, embodiments will be described with reference to the drawings. The same functions and configurations are denoted by the same or similar reference numerals, and a description thereof will be omitted as appropriate.

[0026](1) Overall Schematic Configuration of Radio Communication System

[0027]FIG. 1 is a diagram illustrating an overall schematic configuration of a radio communication system 10 according to the present embodiment. The radio communication system 10 is a radio communication system according to Long Term Evolution (LTE) and 5G New Radio (NR). Note that the LTE may also be referred to as 4G, and NR may also be referred to as 5G.

[0028]The radio communication system 10 includes an Evolved Universal Terrestrial Radio Access Network 20 (hereinafter, referred to as E-UTRAN 20) and a Next Generation-Radio Access Network 30 (hereinafter, referred to as NG RAN 30). Further, the radio communication system 10 includes a user equipment 200 (hereinafter referred to as ...

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Abstract

A user equipment is disclosed including a transmitting unit; a receiving unit; and a control unit. The control unit starts connection to a second node different from a first node to which the user equipment is connected, in response to transmission, to the second node, of a connection request to the second node by the transmitting unit, or reception of the connection request from the second node by the receiving unit.

Description

TECHNICAL FIELD[0001]The present invention relates to a user equipment.BACKGROUND ART[0002]The 3rd Generation Partnership Project (3GPP) specifies Long Term Evolution (LTE) and specifies LTE-Advanced (hereinafter, collectively referred to as LTE) for the purpose of further increasing the speed of LTE. Moreover, in the 3GPP, specification of a succeeding system of the LTE called 5G New Radio (NR) or Next Generation (NG) has been considered.[0003]Further, Multi-Radio Dual Connectivity (MR-DC), in which a User Equipment (UE) is simultaneously connected to a plurality of nodes (radio base stations) that use different Radio Access Technologies (RAT), specifically, a Master Node (MN) and a Secondary Node (SN), is defined in the 3GPP (see Non Patent Literature 1).[0004]When configuring the MR-DC, the UE first establishes connection with a desired node in a radio resource control layer (RRC layer) to be in a connection state (RRC Connected). Thereafter, a network transmits an instruction si...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04W76/16H04W24/08
CPCH04W76/16H04W24/08H04W76/15H04W76/18
Inventor UCHINO, TOORUTAKAHASHI, HIDEAKIHANAKI, AKIHITOOU, HIROSHIMURATA, NAOYA
Owner NTT DOCOMO INC